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<a name="1" href="#1">1</a>   <em class="jxr_javadoccomment">/**</em>
<a name="2" href="#2">2</a>   <em class="jxr_javadoccomment"> * Copyright 2010 Nicholas Blair, Eric Dalquist</em>
<a name="3" href="#3">3</a>   <em class="jxr_javadoccomment"> *</em>
<a name="4" href="#4">4</a>   <em class="jxr_javadoccomment"> * Licensed under the Apache License, Version 2.0 (the "License");</em>
<a name="5" href="#5">5</a>   <em class="jxr_javadoccomment"> * you may not use this file except in compliance with the License.</em>
<a name="6" href="#6">6</a>   <em class="jxr_javadoccomment"> * You may obtain a copy of the License at</em>
<a name="7" href="#7">7</a>   <em class="jxr_javadoccomment"> *</em>
<a name="8" href="#8">8</a>   <em class="jxr_javadoccomment"> *   <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="9" href="#9">9</a>   <em class="jxr_javadoccomment"> *</em>
<a name="10" href="#10">10</a>  <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, software</em>
<a name="11" href="#11">11</a>  <em class="jxr_javadoccomment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="12" href="#12">12</a>  <em class="jxr_javadoccomment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="13" href="#13">13</a>  <em class="jxr_javadoccomment"> * See the License for the specific language governing permissions and</em>
<a name="14" href="#14">14</a>  <em class="jxr_javadoccomment"> * limitations under the License.</em>
<a name="15" href="#15">15</a>  <em class="jxr_javadoccomment"> */</em>
<a name="16" href="#16">16</a>  
<a name="17" href="#17">17</a>  <strong class="jxr_keyword">package</strong> com.googlecode.ehcache.annotations.integration;
<a name="18" href="#18">18</a>  
<a name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> java.util.concurrent.CountDownLatch;
<a name="20" href="#20">20</a>  
<a name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> org.junit.Assert;
<a name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> org.junit.Before;
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> org.junit.Test;
<a name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> org.junit.runner.RunWith;
<a name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> org.springframework.beans.factory.annotation.Autowired;
<a name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> org.springframework.test.context.ContextConfiguration;
<a name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
<a name="28" href="#28">28</a>  
<a name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> com.googlecode.ehcache.annotations.util.ThreadGroupRunner;
<a name="30" href="#30">30</a>  
<a name="31" href="#31">31</a>  <em class="jxr_javadoccomment">/**</em>
<a name="32" href="#32">32</a>  <em class="jxr_javadoccomment"> *</em>
<a name="33" href="#33">33</a>  <em class="jxr_javadoccomment"> * @author Nicholas Blair, nblair@doit.wisc.edu</em>
<a name="34" href="#34">34</a>  <em class="jxr_javadoccomment"> * @version $Id: SelfPopulatingMethodTest.html 233 2010-04-06 17:45:56Z eric.dalquist@gmail.com $</em>
<a name="35" href="#35">35</a>  <em class="jxr_javadoccomment"> */</em>
<a name="36" href="#36">36</a>  @RunWith(SpringJUnit4ClassRunner.<strong class="jxr_keyword">class</strong>)
<a name="37" href="#37">37</a>  @ContextConfiguration(locations = <span class="jxr_string">"/selfPopulatingMethodTestContext.xml"</span>)
<a name="38" href="#38">38</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../com/googlecode/ehcache/annotations/integration/SelfPopulatingMethodTest.html">SelfPopulatingMethodTest</a> {
<a name="39" href="#39">39</a>  	<strong class="jxr_keyword">private</strong> <a href="../../../../../com/googlecode/ehcache/annotations/integration/SelfPopulatingTestInterface.html">SelfPopulatingTestInterface</a> selfPopulatingTestInterface;
<a name="40" href="#40">40</a>  
<a name="41" href="#41">41</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="42" href="#42">42</a>  <em class="jxr_javadoccomment">	 * @param selfPopulatingTestInterface the selfPopulatingTestInterface to set</em>
<a name="43" href="#43">43</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="44" href="#44">44</a>  	@Autowired
<a name="45" href="#45">45</a>  	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setSelfPopulatingTestInterface(
<a name="46" href="#46">46</a>  			SelfPopulatingTestInterface selfPopulatingTestInterface) {
<a name="47" href="#47">47</a>  		<strong class="jxr_keyword">this</strong>.selfPopulatingTestInterface = selfPopulatingTestInterface;
<a name="48" href="#48">48</a>  	}
<a name="49" href="#49">49</a>  	
<a name="50" href="#50">50</a>  	@Before
<a name="51" href="#51">51</a>  	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSetup() {
<a name="52" href="#52">52</a>  	    <strong class="jxr_keyword">this</strong>.selfPopulatingTestInterface.reset();
<a name="53" href="#53">53</a>  	}
<a name="54" href="#54">54</a>  	
<a name="55" href="#55">55</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="56" href="#56">56</a>  <em class="jxr_javadoccomment">	 * Verify that setting selfPopulating=true will guarantee only 1 invocation</em>
<a name="57" href="#57">57</a>  <em class="jxr_javadoccomment">	 * of the cached method.</em>
<a name="58" href="#58">58</a>  <em class="jxr_javadoccomment">	 * </em>
<a name="59" href="#59">59</a>  <em class="jxr_javadoccomment">	 * @throws Exception</em>
<a name="60" href="#60">60</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="61" href="#61">61</a>  	@Test
<a name="62" href="#62">62</a>  	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSelfPopulatingTrue() <strong class="jxr_keyword">throws</strong> Exception {
<a name="63" href="#63">63</a>          <strong class="jxr_keyword">final</strong> CountDownLatch threadRunningLatch = <strong class="jxr_keyword">new</strong> CountDownLatch(6);
<a name="64" href="#64">64</a>          <strong class="jxr_keyword">final</strong> CountDownLatch proccedLatch = <strong class="jxr_keyword">new</strong> CountDownLatch(1);
<a name="65" href="#65">65</a>          <strong class="jxr_keyword">this</strong>.selfPopulatingTestInterface.setThreadRunningLatch(threadRunningLatch);
<a name="66" href="#66">66</a>          <strong class="jxr_keyword">this</strong>.selfPopulatingTestInterface.setProccedLatch(proccedLatch);
<a name="67" href="#67">67</a>          
<a name="68" href="#68">68</a>  		Assert.assertEquals(0, <strong class="jxr_keyword">this</strong>.selfPopulatingTestInterface.getBlockingAInvocationCount());
<a name="69" href="#69">69</a>  		Assert.assertEquals(0, <strong class="jxr_keyword">this</strong>.selfPopulatingTestInterface.getBlockingBInvocationCount());
<a name="70" href="#70">70</a>  		
<a name="71" href="#71">71</a>  		<strong class="jxr_keyword">final</strong> <a href="../../../../../com/googlecode/ehcache/annotations/util/ThreadGroupRunner.html">ThreadGroupRunner</a> threadGroup = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/googlecode/ehcache/annotations/util/ThreadGroupRunner.html">ThreadGroupRunner</a>(<span class="jxr_string">"testSelfPopulatingTrue-"</span>, <strong class="jxr_keyword">true</strong>);
<a name="72" href="#72">72</a>  		
<a name="73" href="#73">73</a>  		threadGroup.addTask(<strong class="jxr_keyword">new</strong> Runnable() {	
<a name="74" href="#74">74</a>  			<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> run() {
<a name="75" href="#75">75</a>  			    threadRunningLatch.countDown();
<a name="76" href="#76">76</a>  				selfPopulatingTestInterface.blockingA(<span class="jxr_string">"test2"</span>);
<a name="77" href="#77">77</a>  			}
<a name="78" href="#78">78</a>  		});
<a name="79" href="#79">79</a>  		threadGroup.addTask(<strong class="jxr_keyword">new</strong> Runnable() {	
<a name="80" href="#80">80</a>  			<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> run() {
<a name="81" href="#81">81</a>  			    threadRunningLatch.countDown();
<a name="82" href="#82">82</a>  				selfPopulatingTestInterface.blockingA(<span class="jxr_string">"test2"</span>);
<a name="83" href="#83">83</a>  			}
<a name="84" href="#84">84</a>  		});
<a name="85" href="#85">85</a>          threadGroup.addTask(<strong class="jxr_keyword">new</strong> Runnable() { 
<a name="86" href="#86">86</a>              <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> run() {
<a name="87" href="#87">87</a>                  threadRunningLatch.countDown();
<a name="88" href="#88">88</a>                  selfPopulatingTestInterface.blockingB(<span class="jxr_string">"test2"</span>);
<a name="89" href="#89">89</a>              }
<a name="90" href="#90">90</a>          });
<a name="91" href="#91">91</a>          threadGroup.addTask(<strong class="jxr_keyword">new</strong> Runnable() { 
<a name="92" href="#92">92</a>              <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> run() {
<a name="93" href="#93">93</a>                  threadRunningLatch.countDown();
<a name="94" href="#94">94</a>                  selfPopulatingTestInterface.blockingB(<span class="jxr_string">"test2"</span>);
<a name="95" href="#95">95</a>              }
<a name="96" href="#96">96</a>          });
<a name="97" href="#97">97</a>  		
<a name="98" href="#98">98</a>          threadGroup.start();
<a name="99" href="#99">99</a>          
<a name="100" href="#100">100</a>         <em class="jxr_comment">// wait for both threads to get going</em>
<a name="101" href="#101">101</a>         threadRunningLatch.await();
<a name="102" href="#102">102</a>         
<a name="103" href="#103">103</a>         <em class="jxr_comment">//TODO is a sleep needed here? The Latch doesn't guarantee that the second thread is actually waiting within the self populating ehcache decorator</em>
<a name="104" href="#104">104</a>         
<a name="105" href="#105">105</a>         <em class="jxr_comment">// Let both threads complete</em>
<a name="106" href="#106">106</a>         proccedLatch.countDown();
<a name="107" href="#107">107</a>         
<a name="108" href="#108">108</a>         threadGroup.join();
<a name="109" href="#109">109</a> 		
<a name="110" href="#110">110</a> 		<em class="jxr_comment">// verify only 1 call between method A and method B</em>
<a name="111" href="#111">111</a> 		Assert.assertEquals(1, <strong class="jxr_keyword">this</strong>.selfPopulatingTestInterface.getBlockingAInvocationCount());
<a name="112" href="#112">112</a> 		Assert.assertEquals(1, <strong class="jxr_keyword">this</strong>.selfPopulatingTestInterface.getBlockingBInvocationCount());
<a name="113" href="#113">113</a> 	}
<a name="114" href="#114">114</a> }
</pre>
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